Glue-kettle.



F. G. PERKINS, D30 1).

G. S- PEBKINS, EXEOUTEIX.

GLUE KETTLE.

APPLIOATION FILED MARA, 1911.

1,109,143. 1 Patented Sept. 1, 1914.

2 SHEETS-SHEET 1.

#M 51 Pu mm will more clearly appear from the detailed man hole cover 9 secured by arms on latches with the accompanying drawings which form apart of this specification.

Referring to the drawings, Figure 1' 1s a. 'vertical section through the apparatus. Fig.

is bolted to-the .FBANK e. rnaxms, DECEASED,

S. PERKINS, EXECUTRIX, 0F LANSDALE, PENNSYLVANIA,

LATE OF LANSDALE, PENNSYLVANIA, BY GER-TRUDE ASSIGNOR TO PERKINS G LUE 00., A CORPORATION OF PENNSYLVANIA.

GLUE-KETTLE.

To all whom. it may concern:

Be it known that FRANK G. PERKINs, deceased, late of Lansdale, borough of Lansdale, State ofPennsylvania, did invent certain new and useful Improvements in Glue- Kettles, of which the following is a specification. u

The invention relates to improvementsn glue kettles or glue mixing vessels and van. ous objects of the invention are .to provide a kettle or mixing apparatus of simple and cheap construction and an apparatus whlch is also most efficient and economical in oper ation and also which is especially applicable and advantageous in thepreparing or mixing of vegetable glue.

Specification 01' Letters Patent. Application filed March 4, 1911.

b'e bolted together j shaft- 12 by means arms are also r1bs 21 which taper off outwardly. Bolted- Patented Sept. 1, 1914. Serial No. 612,180.

'zontally,two in one direction from the shaft 12 and two in the oppositedirection from the shaft 12; but all in substantially the same plane, The arms 19 are so cast that they ma in pairs about the shaft 12 fas shown in the drawings and keyed to the of keys 20. The arms 19 are each inclined or beveled on their underneath side in a direction to tend to force the glue or glue mixture downwardly. The

provided with strengthening to the outer ends of an upper and lower arm 19 is an upright'member 22. The member 22 travels 1n a circular path near the inside vofthe container, a small space being left Further objects, features and advantages between the member 22 and the inside Wall description given below taken in connection 2 is a horizontal sect-ionon the, line II-II of Fig. 1. Fig. 3 is an edge view ofthe stirrer shown in Figs. 1 and 2. Fig. 4 is 'a horizontal section taken on the line IV-IV of Fig. 1. Fig. 5 is a horizontal section of a detail taken on the line V-V of Fig. 1. Fig. 6 is a vertical section of a detail taken on the line VI-VI of Fig. 2, and Fig. 7 is a similar view takenon the line VII VII of Fig.2.

Referring to the drawings, 1 represents a main container having cylindrical side walls with steam heating jackets 2 and 3. The steam jacket 2 is placed above the jacket 3 and the two bolted together by means of bolts 4 Steam is admitted to the jackets 2 and 3 by meansof pipes 5 and 6. A top 7 container and is provided hole opening 8 over which is a with a man stirrer which comprises four similar radial arms 19 extending hori- ,of the container. Bolted to the other upper :and lower arm 19 .ber 23. The member 23 runs in path between the container and the a circular shaft 12 or center of the circular path followed by the member 22.

The bottom 24 of the container inclines id owv'nwardly toward the center from all "ildesand in the center of the bottom is an outlet 25. At or in the to thefshaft 12 *is a blades 26, which are tilted or inclined as shown in Figs. 1 and 4 so that they tend to force the. glue out through the outlet when Khle shaft 12 is turned. Below the blades 26 a (1 outlet 25 is a gate valve 27 which is used to shut oif or allow of the supply of glue below whenever desired. Also bolted tooutlet 25 and secured gether about the shaft 12 and carried by the stirrer are two members 28 provided with strengthening ribs 29.

Themembers 28 run near to the bottom 24: and parallel to the same and the incline thereof. The member or members 28 are secured to shaft 12 independently of the arms 19,'and the arms 19 may therefore be adjusted to different heights independent of the member or members 29. This may be doneby loosening the bolts 30 and moving the arms 19 to the height desired and then tightening the bolts; 30. The members 28 are so constructed of members .28 and thence to the shaft 12 about which they are bolted.

The kettle is supported bymeans of lugs member carrying two that they have lugs 31 which extend integrally from the top edges is a second upright mem 32 integral with the bottom, the lugs 32 being bolted to the floor and the outlet 25 and part of the bottom extending down through the floor to the room below.

The materials for making or preparing the glue are admitted through the opening 8, and the stirrer, etc., acts to thoroughly 4 mix them or stir the glue. The steam jackets will serve to keep the batch at the proper 1o temperature if necessary. 'After beingfully treated the gate valve- 27 may be opened and the blades 26 will readily force the glue throng the outlet. The particular arrangement f stirrer shown is found especially advantageous in thepreparation of vegetable glue and the inclination of the bottom makes more easy the withdrawin of -the gluetincluding the entire batch, from the.

container.

ratus is especially adapted is the vegetable glue described in U. S. Letters Patent No. 1,020,656 and Reissue Letters Batent No. 13,436. The glue there described 15 a colloid of great viscosity formed .by dissolving starch flour in water and caustic soda, and

it apparently contains besides a large proportion of hydrosols an enormous number of nuclei, and owing to its unusually high concentration (about 30%) it is prone to gelatinize. The causes for requiring a specially adapted mixing kettle and the functionsof its parts appear to be asfollows: As soon as hydrogel particles begin to form a minute weblike structurejs created with walls perhaps entirely invisible under a microscope, and as the starch moleculeis relatively large, this structure is extensive and will long remain like a fluid. Under the influence of surface tension these sheets of weblike structure roll up into hollow cylinders, etc., and there results a segregation of.

hydrous hydrogel groups from the remaining hydrosols. In this manner ropy, viscid masses and lumpy gelatinousaggregations are prone to form; throughput the glue mass and also to grow *and bar "enby further segregation and addition to tht wall structure. When this occurs in this vegetable glue such so aggregations collect more or less on the sides and bottom of the container and if allowed to remain for any length of timeattach themselves thereto strongly. It is not suiiicient to remove these aggregations bodily but they must be desegregated by breaking down the invisible dividing walls and tearing up the ropy structure.

In the apparatus shown and described, the

' upright member 22 and bottom scrapers 28 and 29 running close to the walls of the container, not only serve to prevent the gelatinous aggregates from collecting, growing and attaching themselves to the side and bottom of the container, but also act to desegregate any such masses as may be .formed.

The particular glue for which this'*appa-" The intermediate stirring member 23 acts to desegregate or prevent segregation in the body of the glue mass by tearing through the segregation walls, liberating the contents of the segregation cylinders, etc., and disintegrating and distributing the fragmentary parts of these walls. The screw blades 26 operating in the glue outlet act to stir and desegregate the glue in the outlet when the valve 27 is closed, and

these screw blades 26 are of such size and shape that they will not pack any solid material (as the starch flour suspended in water) in the outlet when the outlet is closed, but upon opening the valve 27 the blades26 act to force the glue through ,the outlet. 1

Although the improvements have been described in great detail it is not desired that the invention in its broadest aspects be limited to. such details except as clearly {pointed out in the appended claims, since jmany changes and modifications may well be made without departing from the spirit 10f the invention in its broadestv aspects. 4

Having thus fully and; clearly described the invention, what is claimed and desired to be secured b Letters Patent, is: r 1. A kettle or mixing and dissolvin a 'flour to form glue, comprising a .suita le ,containerhaving a de-segregating mechanism itherein' embracing a scraper moving adja- ;cent the side of the container for preventing the accumulation of gelatinous material ad- 'jacent the side of the container, one or more ,de-segregating stirring members passing through the body of the glue, and ascraper running adjacent to and parallel to the bot- ;tom of the container for preventing the accumulation of suspended flour as sediment, and of gelatinous matter adjacent the bot-- ton l land forcing the same up into the path of t e other de-segregating members. 1 2. A kettle for mixing and dissolving a jfiour to form glue, comprising a, suitable container, means therein for de-segregating the glue, said container having an outlet in its bottom, means for opening and closing said outlet, and means at the outlet for stir-- :ring the glue in the outlet when the outlet is closed without packing any solid material ,therein and adapted to force the glue Zthrough the outlet when the outlet is open.

'3. A kettle for mixing and dissolvin a :flour to form. glue, comprising a suita le the Inc, said container having. an outlet-in ltS ottom, the bottom inclining -dow'n-;='

ing members running parallel to and adj acent the .bottom acting to progress the glue toward the outlet as the containeris bein' outlet and meansratthe outlet for stir-ring l\ container, means therein for de-segregating 'wardly toward the outlet, one or more serapemptied, means for opening-ande'l'osing sai 1 p i the glue in the outlet when the outlet is inmates closed without packing any solid material therein and adapted to force the glue through the outlet when the outlet is en.

4. A kettle for mixing and dissolving a flour to form glue, comprising a suitable container, means therein for die-segregating the glue, said container having an outlet in its bottom, means foropenin and closing said outlet, and a screw in t e outlet for stirring the glue in the outlet when the out-- let is closed, without packing any solid material therein and adapted to force the glue through the outlet when the outlet is open.

5. A kettle for mixing and dissolving a flour to form glue, comprising a suitable container, means therein for (lo-segregating the glue embracing a scraper movlng adjacent the side of the container for preventin the accumulation of gelatinous material a jacent the side of the container, one or more tie-segregating" stirring members .passing through the body of the glue, and a scraper running adjacent to and parallel to the bottom of the container for preventing the accumulation of suspended flour as sediment, and of gelatinous matter adjacent the bottom and forcing the same up into the path of the other de-segregating members, said container havin an outlet in its bottom, means for opening and closing said outlet and a screw in the outlet for stirring the glue in the outlet when the outlet is closed without packing any solid material therein, and adapted to force the glue through the outlet when the outlet is open.

' 6. A. kettle for mixing and dissolving a flour to form glue, comprlsing a suitable container provided with a heating jacket and having a ole-segregating mechanism therein embracing a scraper moving ad acent the side-0f the container for preventing the accontainer, provided with a heating jacket and means therein for (is-segregating the glue, said container having an outlet in its bottom, the bottom inclining downwardly toward the outlet, one or more scraping members running parallel to and adjacent the bottom acting to progress the glue to ward the outlet as the container is being emptied, means for opening and closing said outlet and means at the outlet for starring the glue in the outlet when the outlet is closed without packing any solid material therein and adapted to force the glue throughv the outlet when the outlet is open.

In testimony whereof, I have signed my name to this specification in the presence of two subscribin witnesses.

GIRTRUDE S. PERKINS, Ewcoutm'w of the estate of Frank G. Per/him,

deceased. Witnesses:

R. G. WnND'r, L. MOMIIMEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

